Valves and valve actuation – Fluid actuated or retarded – Flexible wall expansible chamber reciprocating valve actuator
Patent
1987-04-24
1988-11-08
Rosenthal, Arnold
Valves and valve actuation
Fluid actuated or retarded
Flexible wall expansible chamber reciprocating valve actuator
251 61, F16K 31126
Patent
active
047830468
ABSTRACT:
There is disclosed a pneumatic gate valve actuator adapted to move the gate of the valve between opened and closed position by the introduction of air pressure into or the exhaustion of air pressure from an expandable and contractible pressure chamber formed within a tire casing and between upper and lower plates having their peripheries connected to inner edges of a tire casing. The lower plate is connected to the stem for the gate, the upper plate is connected to the bonnet of the actuator, and a coil spring is compressed between the lower plate and the bonnet, so that the gate may be moved to open position upon the supply of air pressure to the chamber, and moved to closed position upon the exhaust of air pressure from the pressure chamber.
REFERENCES:
patent: 585711 (1897-07-01), Smith
patent: 826637 (1906-07-01), Wilkins
patent: 1619866 (1927-03-01), Hoeschen
patent: 2208539 (1940-07-01), Brown
patent: 2241324 (1941-05-01), Selby
patent: 2638124 (1953-05-01), Nickerson
patent: 2678662 (1954-05-01), Boteler
patent: 2882007 (1959-04-01), Conlan
patent: 3120856 (1964-02-01), McIntosh
patent: 3624802 (1971-11-01), Ripert
patent: 3767160 (1973-10-01), McCollum
patent: 3967809 (1976-07-01), Skantar
patent: 3982400 (1976-09-01), Benkert
patent: 4048265 (1977-09-01), Fordyce et al.
patent: 4111221 (1978-09-01), Olsen
patent: 4378932 (1983-04-01), Avery
patent: 4488473 (1984-12-01), Gammon
Akkerman Neil H.
Young Terry G.
AVA International Corporation
Rosenthal Arnold
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